On October 15, 2023, Enhypen's label, Belift Lab, announced the album through a notice to fans on Weverse.[2] According to a timeline shared on their social media accounts, the album is slated for release on November 17,[3] with promotions for the album starting on October 27.[4] On October 16, the group unveiled a 25-second logo trailer.[5][6] The video included visuals of solar eclipses and a sunset that turns orange, followed by the phrase "you and I are connected through blood".[7] Orange Blood was teased as the continuation of a blood-themed story that started with the group's EP Dark Blood, which was released on May 22,[8] and aims to convey various "entertaining contents" through a new "K-pop roadmap".[9]